binary relation
simple past tense and past participle of twist in the wind
(obsolete) A movable sideboard or buffet on which plate and other articles of luxury were displayed on special occasions.
plural of eleven
(set theory, order theory, on a set A) A subset of the Cartesian product A×A (the set of ordered pairs (a, b) of elements of A).
on
集合論において、集合A上の二項関係は直積A×Aの部分集合として定義され、その反射性や推移性を解析することで順序の性質が明らかになります。
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